Ring piece welding tool

Abstract

The utility model belongs to the technical field of welding machining, and particularly relates to a ring piece welding tool which comprises a support, a rotary workbench is rotationally installed on the support, clamping sliding blocks are arranged on the two sides of the rotary workbench, a sliding rail is arranged below the clamping sliding blocks, and the two clamping sliding blocks are installed on the sliding rail in a sliding mode. A notch detection device is arranged at the position, corresponding to the height position of the to-be-welded part, of the support, and the notch detection device is in signal connection with the control device. Notches of the to-be-welded part are adjusted to the uniform position through rotation of the rotary workbench, manual adjustment of the position of the part is avoided, the labor intensity of workers can be relieved, and the production efficiency is improved. And meanwhile, centralized protection and cleaning can be conveniently conducted on a welding site, and the production environment is improved.

Description

Technical Field

[0001] This utility model belongs to the field of welding processing technology, and in particular relates to a welding fixture for ring parts. Background Technology

[0002] Ring-shaped components are a common type of component, widely used in electronics, food processing, automobile manufacturing and other fields. The common processing method for ring-shaped components is to pre-bend and roll the sheet metal and then weld the notch. In order to ensure the shape of the ring, tooling is needed to assist in shaping during welding.

[0003] Chinese invention patent application number 202010585466.8 discloses a ring welding auxiliary frame. The frame is equipped with positioning plates. Workers place the ring part to be welded with the notch aligned with the positioning plates, and then press the ring part with a clamping component before welding.

[0004] This type of welding fixture requires workers to perform precise operations when placing parts. This is inconvenient for larger parts and increases the labor intensity of workers. Therefore, there is a need to find a fixture that can automatically position the welding position. Utility Model Content

[0005] The main technical problem to be solved by this utility model is to provide a ring welding fixture that adjusts the notch of the part to be welded to a uniform position by rotating the rotating worktable, avoiding the need for manual adjustment of the part position, which helps to reduce the labor intensity of workers, improve work efficiency, and also facilitates centralized protection and cleaning of the welding site, thus improving the production environment.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A ring welding fixture includes a support, a rotary worktable rotatably mounted on the support, clamping sliders on both sides of the rotary worktable, a slide rail below the clamping sliders, two clamping sliders slidably mounted on the slide rail, and a notch detection device is provided on the support at a position corresponding to the height of the part to be welded, the notch detection device being signal-connected to a control device.

[0008] The following are further optimizations of the above technical solution by this utility model:

[0009] The rotary worktable includes a platform, a main rotating shaft is provided below the platform, and an upper crossbeam is fixedly provided on the support at a position corresponding to the main rotating shaft. The main rotating shaft is rotatably mounted on the upper crossbeam.

[0010] Further optimization: A rotary drive device is connected to the main rotating shaft, and the rotary drive device is fixedly mounted on the bracket.

[0011] Further optimization: The slide rail is arranged along the length of the upper crossbeam and fixedly installed on the upper surface of the upper crossbeam. The bottom end of the clamping slider is provided with a groove, the shape of which is adapted to the slide rail. The top end of the clamping slider is provided with a V-shaped notch. The two clamping sliders are arranged symmetrically, and the V-shaped notch at the top faces the platform.

[0012] Further optimization: A lower mounting plate is fixedly installed on the bracket below the main rotating shaft. A clamping drive device is fixedly installed on the bottom surface of the lower mounting plate. A lower crossbeam is fixedly installed at the end of the telescopic end of the clamping drive device.

[0013] Further optimization: A drive arm assembly is set on each side of the upper crossbeam. Each drive arm assembly includes two drive arms symmetrically arranged at both ends of the upper crossbeam. The two drive arms in the same drive arm assembly are installed in the same plane and at a certain angle.

[0014] Further optimization: The middle part of the drive arm is rotatably mounted on the upper crossbeam, and the two ends of the drive arm are slidably mounted on the clamping slider and the lower crossbeam, respectively.

[0015] Further optimization: Several connecting rods are fixedly connected to the bottom surface of the shelf. The connecting rods are arranged in a ring along the bottom surface of the shelf and spaced apart. The bottom end of the connecting rods is fixedly connected to the main rotation axis.

[0016] The present invention adopts the above technical solution and has the following beneficial effects:

[0017] This invention features a rotating worktable that allows the parts to be welded to rotate freely, bringing the welding notch to the welding position without requiring manual adjustment of the parts' position, thus greatly reducing the labor intensity of workers.

[0018] This utility model is equipped with a notch detection device, which is used to detect whether the rotary worktable has driven the part to rotate into position, and to detect whether the notch of the part is completely closed. The notch detection device is connected to the control device to control the automatic operation of the equipment and improve production efficiency.

[0019] This invention, through the cooperation of a rotating worktable and a notch detection device, adjusts the welding work of parts to the same position, reduces the moving distance of the welding equipment, and facilitates centralized protection and cleaning of the welding site, which helps to further reduce the labor of workers and improve the production environment.

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1 This is a perspective view of the overall structure of an embodiment of the present utility model;

[0022] Figure 2This is a front view of the overall structure of an embodiment of the present utility model;

[0023] Figure 3 This is a perspective view of another embodiment of the present utility model;

[0024] Figure 4 This is a three-dimensional view of the overall structure of the rotary worktable of this utility model.

[0025] In the diagram: 1. Support frame; 101. Upper crossbeam; 102. Lower mounting plate; 2. Rotary worktable; 201. Storage platform; 202. Connecting rod; 203. Main rotation shaft; 204. Drive wheel; 205. Driven wheel; 206. Rotation drive device; 3. Notch detection device; 4. Slide rail; 5. Clamping slider; 6. Lower crossbeam; 7. Drive arm; 8. Clamping drive device. Detailed Implementation

[0026] like Figure 1-4 As shown, a ring welding fixture includes a support 1, on which a rotating worktable 2 is rotatably mounted to support the part to be welded and drive it to rotate. Clamping sliders 5 are provided on both sides of the rotating worktable 2 to clamp and shape the part to be welded. A notch detection device 3 is provided on the support 1 at a position corresponding to the height of the part to be welded to locate the position of the notch on the part to be welded, so as to facilitate welding.

[0027] The rotary worktable 2 includes an annular platform 201. The top surface of the platform 201 holds the parts to be welded. Several connecting rods 202 are fixedly connected to the bottom surface of the platform 201. The connecting rods 202 are arranged in an annular pattern and spaced apart along the bottom surface of the platform 201. The bottom end of the connecting rods 202 is fixedly connected to a main rotating shaft 203. An upper crossbeam 101 is fixedly installed on the support 1 at a position corresponding to the main rotating shaft 203. The main rotating shaft 203 is rotatably mounted on the upper crossbeam 101.

[0028] In this embodiment, the main rotating shaft 203 and the upper crossbeam 101 can be installed using either a bearing or a bushing to ensure that the main rotating shaft 203 can rotate freely on the upper crossbeam 101.

[0029] A rotation drive device 206 is connected to the main rotating shaft 203. The rotation drive device 206 is fixedly installed on the bracket 1 at a position below the shelf 201.

[0030] Specifically, the power output end of the rotary drive device 206 is connected to a drive wheel 204, and a driven wheel 205 is fixedly connected on the main rotary shaft 203 at a position corresponding to the drive wheel 204. The diameter of the drive wheel 204 is smaller than the diameter of the driven wheel 205, which is used to reduce the speed and increase the torque of the power output by the rotary drive device 206, thereby saving power.

[0031] In this embodiment, the rotary drive device 206 is a servo motor, and the driving wheel 204 and the driven wheel 205 are both gears. The servo motor outputs rotational power, which drives the main rotating shaft 203 to rotate on the upper crossbeam 101 through the transmission of the driving wheel 204 and the driven wheel 205, thereby driving the parts to be welded placed on the platform 201 to rotate.

[0032] In addition to this embodiment, the transmission connection between the rotary drive device 206 and the main rotary shaft 203 can also be one of belt drive or chain drive. Correspondingly, the driving wheel 204 and the driven wheel 205 are one of belt pulleys or sprockets, which transmit the power output by the rotary drive device 206 to the main rotary shaft 203.

[0033] A slide rail 4 is provided below the clamping slider 5. The slide rail 4 is arranged along the length of the upper crossbeam 101 and fixedly installed on the upper surface of the upper crossbeam 101. A groove is provided at the bottom of the clamping slider 5. The shape of the groove is adapted to the slide rail 4. A V-shaped notch is provided at the top of the clamping slider 5. The two clamping sliders 5 are symmetrically slidably installed on the slide rail 4. The V-shaped notch at the top faces the shelf 201.

[0034] A lower mounting plate 102 is fixedly installed on the bracket 1 at a position below the main rotating shaft 203. A clamping drive device 8 is fixedly installed on the bottom surface of the lower mounting plate 102. The telescopic end of the clamping drive device 8 passes through the lower mounting plate 102. A lower crossbeam 6 is fixedly installed at the end of the telescopic end of the clamping drive device 8.

[0035] In this embodiment, the clamping drive device 8 can be selected from one of a servo cylinder, a servo electric cylinder, or a servo hydraulic cylinder. The telescopic end of the clamping drive device 8 extends or retracts, driving the lower crossbeam 6 to move up and down.

[0036] A drive arm assembly is provided on each side of the upper crossbeam 101. Each drive arm assembly includes two drive arms 7 symmetrically arranged at both ends of the upper crossbeam 101. The two drive arms 7 in the same drive arm assembly are installed in the same plane and at a certain angle.

[0037] Specifically, the drive arm 7 has a round hole in the middle and elongated holes at both ends. The drive arm 7 is rotatably mounted on the upper crossbeam 101 through the round hole in the middle, and is slidably mounted on the clamping slider 5 and the lower crossbeam 6 through the elongated holes at both ends, respectively. The drive arm assemblies on both sides drive synchronously on both sides of the clamping slider 5, so that the movement direction of the clamping slider 5 is always parallel to the slide rail 4, making the movement smoother.

[0038] When welding is required on the parts to be welded placed on the platform 201, the telescopic end of the clamping drive device 8 retracts, causing the lower crossbeam 6 to move downwards. The lower ends of the two drive arms 7 move away from each other, and according to the lever principle, the upper ends of the two drive arms 7 move towards each other, thereby causing the two clamping sliders 5 to move towards each other to clamp the parts to be welded, preventing the parts to be welded from shifting during welding and affecting the welding quality.

[0039] After welding is completed, the telescopic end of the clamping drive device 8 extends, causing the lower crossbeam 6 to move upward. The lower ends of the two drive arms 7 move towards each other while the upper ends move away from each other, thereby causing the two clamping sliders 5 to move away from each other. The clamping sliders 5 disengage from the ring, allowing the welded ring to be removed and the next product to be welded to be placed.

[0040] The notch detection device 3 is fixedly installed on the bracket 1 at a position corresponding to the welding equipment. The height of the notch detection device 3 corresponds to the height of the part to be welded. The notch detection device 3 is connected to the control device via signal.

[0041] In this embodiment, the notch detection device 3 is a through-beam photoelectric switch. The signal transmitter and signal receiver of the through-beam photoelectric switch are respectively installed on the inner and outer sides of the ring-shaped platform 201. The signal transmitter emits a signal, and the signal receiver is connected to the control device. The control device controls the operation of the relevant devices by sensing the changes in the received signal.

[0042] During operation, the worker randomly places the parts to be welded on the platform 201. Due to the obstruction of the parts to be welded, the signal receiver cannot receive the signal emitted by the signal transmitter. At this time, the rotary drive device 206 works, driving the parts to be welded to rotate. When the notch of the parts to be welded is aligned with the notch detection device 3, the signal emitted by the signal transmitter is received by the signal receiver. The control device controls the rotary drive device 206 to stop working by sensing the change in the signal, and the parts to be welded are placed in place.

[0043] As the rotary drive device 206 stops working, the control device controls the telescopic end of the clamping drive device 8 to retract, causing the two clamping sliders 5 to move towards each other. After the clamping sliders 5 contact the outer surface of the part to be welded, they continue to move so that the notch of the test ring is closed. At the moment the notch is closed, the signal receiver will be unable to receive the signal emitted by the signal transmitter. The control device controls the clamping drive device 8 to stop working by sensing the change in the received signal, and the worker operates the welding equipment to perform welding.

[0044] This design eliminates the need for workers to adjust the position of the notch when placing the parts to be welded, reducing their workload. The rotating worktable 2 adjusts the notch of the parts to be welded to a uniform position, reducing the distance the welding equipment needs to move. It also facilitates the protection and cleaning of the welding site, further reducing workers' workload, improving work efficiency, and improving the production environment.

[0045] To better ensure the roundness of the ring after welding, an inner circle positioning device can be installed in the inner hole of the platform 201. The structure of the inner circle positioning device is the same as that of the clamping device 3. The inner circle positioning block is driven to expand outward from the center of the ring by the driving mechanism, and works in cooperation with the clamping device 3. Such devices are widely used in the prior art, and will not be described in detail in this utility model.

[0046] For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of this utility model, based on the teachings of this utility model, still fall within the protection scope of this utility model.

Claims

1. A ring welding fixture, comprising a support (1), a rotary worktable (2) rotatably mounted on the support (1), clamping sliders (5) provided on both sides of the rotary worktable (2), a slide rail (4) provided below the clamping sliders (5), and two clamping sliders (5) slidably mounted on the slide rail (4), characterized in that: A notch detection device (3) is installed on the bracket (1) at a position corresponding to the height of the part to be welded, and the notch detection device (3) is connected to the control device.

2. The ring welding fixture according to claim 1, characterized in that: The rotating worktable (2) includes a platform (201), a main rotating shaft (203) is provided below the platform (201), and an upper crossbeam (101) is fixedly provided on the support (1) at a position corresponding to the main rotating shaft (203). The main rotating shaft (203) is rotatably mounted on the upper crossbeam (101).

3. The ring welding fixture according to claim 2, characterized in that: A rotary drive device (206) is connected to the main rotating shaft (203) and the rotary drive device (206) is fixedly installed on the bracket (1).

4. The ring welding fixture according to claim 3, characterized in that: The slide rail (4) is arranged along the length of the upper crossbeam (101) and fixedly installed on the upper surface of the upper crossbeam (101). The bottom end of the clamping slider (5) is provided with a groove, the shape of which is adapted to the slide rail (4). The top end of the clamping slider (5) is provided with a V-shaped notch. The two clamping sliders (5) are symmetrically arranged, and the V-shaped notch at the top faces the table (201).

5. The ring welding fixture according to claim 4, characterized in that: A lower mounting plate (102) is fixedly installed on the bracket (1) at a position below the main rotating shaft (203). A clamping drive device (8) is fixedly installed on the bottom surface of the lower mounting plate (102). A lower crossbeam (6) is fixedly installed at the end of the telescopic end of the clamping drive device (8).

6. The ring welding fixture according to claim 5, characterized in that: A drive arm assembly is provided on each side of the upper crossbeam (101). Each drive arm assembly includes two drive arms (7) symmetrically arranged at both ends of the upper crossbeam (101). The two drive arms (7) in the same drive arm assembly are installed in the same plane and at a certain angle.

7. The ring welding fixture according to claim 6, characterized in that: The middle part of the drive arm (7) is rotatably mounted on the upper crossbeam (101), and the two ends of the drive arm (7) are slidably mounted on the clamping slider (5) and the lower crossbeam (6), respectively.

8. The ring welding fixture according to claim 7, characterized in that: The bottom surface of the shelf (201) is fixedly connected to several connecting rods (202). The connecting rods (202) are arranged in a ring and spaced apart along the bottom surface of the shelf (201). The bottom end of the connecting rods (202) is fixedly connected to the main rotation shaft (203).

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